this "cbs t >>> welcome to "cbs this morning." i'm jeff floor. there is travel trouble across the nation and on the ground in the air on this busy day before christmas. >> and the problem is a storm system that hit the west coast over the weekend. now it's moving east, threatening to cause problems all week long and anna werner is at dallas-ft. worth international parent. good morning. >> reporter: good morning, rebecca and jeff. we receive a steady stream of travelers coming in here at the dallas-ft. worth international airport but some across the country could have some problems if they're still on their way to their holiday destinations. that's because that fast-moving storm is coming over the rocky mountains and is poised to dump a lot of snow on the midwest as it moves to the northeast. those hoping for a white christmas will get their wish but they may be stuck seeing santa in the airport. more than 5,000 flights were canceled this week as snow smothered the midwest. drivers didn't fair any better as heavy accumulation clogg